The Model 3240S is a managed T1/E1 Fiber Optic Multiplexer designed for maximum network uptime and control. The 3240S extends G.703 compliant T1 and E1 circuits over fiber in point-to-point configurations.  Distances up to 90km can be achieved utilizing extended distance optics, or the economical multimode LED optics may be sufficient for shorter distance requirements.  I/O modules enable the user to expand the network as needed, while optional redundant power and optics guarantee the highest level of reliability available.  An optional field installable SNMP module enables the network manager to monitor, configure, test, and track performance of the system and individual channels. This feature also enables the network manager to detect, troubleshoot, and correct problems in a timely manner.  Functions such as reconfiguration of an individual channel line coding is a simple remote function. Software updates are easily accomplished via a remote connection utilizing TFTP over the serial connection or in-band Ethernet to flash memory.  All of these features add up to an easy-to-use product that ensures a trouble free network for all users. Expand the network, make changes, and rest assured that the network is backed up with the highest level of redundancy available today.